<template>
  <div class="tab-bar-item" @click="itemClick()">
      <div v-if="!isActive">
        <slot name="item-icon"></slot>
      </div>
      <div v-else>
          <slot name="item-icon-active"></slot>
      </div>
      <div :style="activeStyle">
          <slot name="item-text"></slot>
      </div>
      </div>
</template>

<script>
export default {
  name: "TabBarItem",
  props:{
    path:String,
    activeColor:{
      type:String,
      default:'red',
    }
  },
  data() {
      return {
          // isActive:false,
      }
  },

  computed:{
    isActive() {
      return this.$route.path.indexOf(this.path)  !== -1;
    },
    activeStyle(){
      return this.isActive? {color:this.activeColor} : {};
    }
  },
  methods: {
    itemClick(){
      this.$router.replace(this.path);
    }
  },
};
</script>

<style scoped>

.tab-bar-item {
  flex: 1;
  text-align: center;
  height: 49px; /*49是一个很常用的高度，基本app 底部的tabbar 都是49.*/
  font-size: 14px;
  
}

.tab-bar-item img {
  width: 24px;
  height: 24px;
  margin-top: 3px;
  vertical-align: middle;   /*vertical-align: 去除图片和文字之间的像素; */
  margin-bottom: 2px;
  
}
</style>